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212044043231 = 1814872405573
BaseRepresentation
bin1100010101111011001…
…1110101001111011111
3202021022201021110210122
43011132303311033133
511433231233340411
6241224531425155
721214435425446
oct3053663651737
9667281243718
10212044043231
1181a22375139
12351191551bb
1316cc3634987
14a3978c5d5d
1557b09e49db
hex315ecf53df

212044043231 has 8 divisors (see below), whose sum is σ = 213653460384. Its totient is φ = 210439438560.

The previous prime is 212044043209. The next prime is 212044043251. The reversal of 212044043231 is 132340440212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212044043231 - 214 = 212044026847 is a prime.

It is a super-2 number, since 2×2120440432312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212044043231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212044043201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114640 + ... + 1290933.

It is an arithmetic number, because the mean of its divisors is an integer number (26706682548).

Almost surely, 2212044043231 is an apocalyptic number.

212044043231 is a deficient number, since it is larger than the sum of its proper divisors (1609417153).

212044043231 is a wasteful number, since it uses less digits than its factorization.

212044043231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406241.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 212044043231 its reverse (132340440212), we get a palindrome (344384483443).

The spelling of 212044043231 in words is "two hundred twelve billion, forty-four million, forty-three thousand, two hundred thirty-one".

Divisors: 1 181 487 88147 2405573 435408713 1171514051 212044043231